Specifically 2 profoto Acute B batteries and heads, stands etc and a second set of elinchrom mono lights, soft boxes etc.
Thinktank photo Airport Security V 2.0 fits 2 profoto Acute B batteries and heads perfectly. I have this combo and it works grear.
For stands (I use C-stands) Petrol Bags Deca "C-Stand" Bag, the PL2001, is just perfect. It fits 2 C-stands complete with extension arms.
For Zoom Reflectors, Disc Reflectors, Speed Rings for softboxes and umbrellas I use Petrol Bags Light Case Medium, the PL2003, and it fits 3 Speed Rings with Profoto mount, 2 Zoom Reflectors with 2 Disc Reflectors underneath, 2 umbrellas, 1x 5 Degree grid for Zoom Reflector, Softgrid for small softbox, small softbox and 3x Plume Wafer wafers in tubes, a beauty dish sock and diffusors for Plume Wafer medium softbox, stripbox and hexa. I carry the Plume Wafer medium softbox, stripbox and hexa "body" in the original Plume zipper bags which are then attached to the Petrol Bags PL2001 bag (a roller actually).
So, 3 bags will do everything for me on all occassions when using 2 Acutes:
1. the Airport Security - for the lights
2. the PL2001 - for C-stands and wafer zipper bags
3. the PL2003 - for light modifiers
If you want to go with just one bag look for Thinktank photo Logistics manager. I don`t have it so I cannot comment on what it could fit.